Jabsco Electric Marine Toilet (37010-0090) Compact. Equipped with a dual function pump which eliminates having to mess with hand pumps and dry bowl valves. With the simple push of a button, the self-priming flush pump rinses the bowl as the macerator and high capacity scavenger pump grind up waste and pumps it out. Can be installed above or below the waterline. Dimensions 13-3/4"Hx13-7/8"Wx17-5/8"L